/* Check some way in where code suppression caused various
   miscompilations.  */
extern int printf(const char*, ...);
typedef unsigned long size_t;

size_t _brk_start, _brk_end;
void* extend_brk(size_t size, size_t align) {
    size_t mask = align - 1;
    void* ret = 0;

    do {
        if (__builtin_expect(!!(_brk_start == 0), 0))
            do {
                printf("wrong1\n");
            } while (0);
    } while (0);
    _brk_end = (_brk_end + mask) & ~mask;
    ret = (void*)_brk_end;
    _brk_end += size;

    return ret;
}

static void get_args(int a, int b) {
    if (a != 1)
        printf("wrong2\n");
    else
        printf("okay\n");
}

void bla(void) {
    int __ret = 42;
    ({
        if (__builtin_expect(!!(0), 0)) {
            if (__builtin_expect(!!__ret, 0))
                printf("wrong3\n");
            int x = !!(__ret);
        }
        __ret;
    });
    get_args(!!__ret, sizeof(__ret));
}

_Bool chk(unsigned long addr, unsigned long limit, unsigned long size) {
    _Bool ret;
    /* This just needs to compile, no runtime test.  (And it doesn't compile
       only with certain internal checking added that's not committed).  */
    if (0)
        ret = 0 != (!!(addr > limit - size));
}

int main() {
    void* r;
    _brk_start = 1024;
    _brk_end = 1024;
    r = extend_brk(4096, 16);
    if (!r)
        printf("wrong4\n");
    else
        printf("okay\n");
    bla();
    return 0;
}
